The tension-torsion fatigue tester is mainly used for the tension-torsion fatigue test, compression fatigue/three-point fatigue/four-point fatigue durability test of various biomaterials surgical implant materials medical materials, such as metal fixators, bone plates, interbody fusion devices, knee joints, spine fixators, femoral heads, hip joints, intramedullary nails, screws and other materials. It can also carry out tests and provide data according to GB, ISO, DIN, ASTM, JIS, YY and other standards or industry standards. It can automatically calculate test parameters such as fatigue strength, fatigue load, fatigue cycle times, fatigue limit value, and automatically draw various test curves, such as sine wave, triangular wave, square wave, oblique wave, random wave and other waveform curves, and automatically print test reports and test curves, which are widely used in scientific research institutes, colleges and universities, medicine Quality inspection departments such as bioengineering.
Features of tension and torsion fatigue tester:
1. Have the ability of multi-channel synchronous coordination.
2. Flexible and diverse test types - axial actuator and radial swing cylinder (actuator) can complete the test independently or simultaneously
3. Test waveform - sine wave, triangular wave, trapezoidal wave, oblique wave, user-defined waveform.
4. Control mode - the whole process of the test is measured and controlled by microcomputer, with the function of automatic data storage. The parameters can be set according to the test requirements, and the test bench can be controlled to conduct the test automatically. The screen displays the force value, displacement torque value, angle value, frequency, amplitude, cycle number and loading waveform. When the set number of times is reached, the equipment will automatically print out the test results and shut down.
5. Safety protection - low liquid level, overtemperature, liquid core blockage, set fatigue times to and other alarm functions, with load displacement, deformation, upper and lower limit protection.
Operating procedures of tension and torsion fatigue tester:
1. During the test, when the oil pump suddenly stops working, immediately open the oil return valve to remove the test force. It is forbidden to start the oil pump under high pressure or check the cause.
2. During the test, if the electric appliance suddenly fails and the start or stop button does not work, the power supply shall be cut off immediately to stop the test machine.
3. The purpose of the moving beam is to adjust the test space. During the test, it is strictly forbidden to start the moving beam during the loading and unloading, otherwise the lifting drive mechanism may fail.
4. When installing the bending support, pay attention to calculate the distance between the supports. The scale on the support is the position of the center line of the idler.
5. When the "electronic extensometer" operation is not used, the "electronic extensometer" toolbar should click to turn "yellow".
6. When the room temperature is 0 ℃ or below, the oil cylinder shall be preheated before the test. The oil return valve and the oil delivery valve shall be opened at the same time, and the test shall be started according to the steps after 10 minutes of preheating.
